step 5 - open up nvidia control panel, head to sli/physx and click on enable sli.

step 6 - run a benchmark or two.

issues :

side bands or what not(green horizontal stuff on the screen or anything funny)
swap the sli bridge to the other 2 connectors (if present) else swap it around(up down - down up)
or remove it completely.
ive found that enabling, disabling sli indicator makes them go away, if ever they come about.

attention : do this at your own risk. if you mess/hurt things, it is solely your fault.

this website, it's members, admins, owners,makers of the patch,programs,etc are not liable in any form or way if you screw up your os/hardware.